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It is hard to know the exact situation before the big impact. However, most objects start with some rotation when they form from coalescing materials, and it seems unlikely that the Earth would have had enough time to slow down enough to have a synchronous rotation.
It is not known for certain but it is likely that a massive asteroid impact caused the planets axis rotation to tilt.
increased plant abundance
Man is an animal. However, since man has opposable thumbs that led to greater brain development and we have more impact on our environment.
Milankovitch cycles are orbital cycles affecting earth's insolation. There have been a long series of ice ages closely tied to these orbital cycles, and in fact earth should even now be ever so slightly and gradually cooling towards another ice age which should begin in about 50,000 years. Not particularly soon. The fact earth continues warming at a rapid rate suggests significant environmental impact from some outside source.
Animal breeding has no impact on the rotation of the earth.
Light pollution has two types of impacts: * A bright sky makes it more difficult for astronomers to smake observations * Local lights can impact breeding cycles and litter sex distributions in several species of animal (e.g. minks). This is important as hte female minks are more valuable to the mink farmer.
how can the breeding programme reduce the effects on human impact
Well, the okapi can be in danger if the cross bred animal is mutated and can set the whole species off.
The moon's rotation is not as fast as the Earth's rotation.
It is hard to know the exact situation before the big impact. However, most objects start with some rotation when they form from coalescing materials, and it seems unlikely that the Earth would have had enough time to slow down enough to have a synchronous rotation.
Mosly devastating , from poaching for skins. A few dedicated lovers of this magnificent animal work tirelessly for protection, habitat preservation, and anti-poaching enforcement as well as sanctuaries and captive breeding programs.
Individual menstrual cycles depend on the individual person, but the moon does impact on a woman's cycles. Synthetic light and erratic sleeping patterns has stopped this, but many women practice lunaception using either moonlight or synthetic light to help regulate cycles again.
The impact of animal population will decrease. This is because the animals will be killed which means there will be less animals and the population will decrease.
A fish ladder is a structure which allows fish to move past an obstacle such as a dam. Without fish ladders, fish would be stuck downstream of the obstacle, and this could potentially have a negative impact on the breeding cycles and lifestyle of the fish. So, It protects the fish in the environment, and helps animals that eat fish.
human
Earth first gained rotation as it formed by numerous collisions of smaller objects and gained its current rotation during a very large impact that also formed the moon. While interaction with the moon has slowed Earth's rotation, there has been nothing to stop it.